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Decomposing inventory routing problems with approximate value functions. (English) Zbl 1202.90021

Summary: We present a time decomposition for inventory routing problems. The methodology is based on valuing inventory with a concave piecewise linear function and then combining solutions to single-period subproblems using dynamic programming techniques. Computational experiments show that the resulting value function accurately captures the inventory’s value, and solving the multiperiod problem as a sequence of single-period subproblems drastically decreases computational time without sacrificing solution quality.

MSC:

90B05 Inventory, storage, reservoirs
90C11 Mixed integer programming
Full Text: DOI

References:

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